Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1857439 | Annals of Physics | 2013 | 11 Pages |
Abstract
We investigate the dynamics of quantum correlation between two noninteracting qubits each inserted in its own finite-temperature environment with 1/f spectral density. It is found that the phenomenon of sudden transition between classical and quantum decoherence exists in the system when two qubits are initially prepared in X-type quantum states, and the transition time depends on the initial-state of two qubits, the qubit-environment coupling constant and the temperature of the environment. Furthermore, we explore the influence of dynamical decoupling pulses on the transition time and show that it can be prolonged by applying the dynamical decoupling pulses.
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Qi-Liang He, Jing-Bo Xu, Dao-Xin Yao, Ye-Qi Zhang,